113312003021 has 32 divisors (see below), whose sum is σ = 140453222400. Its totient is φ = 89272370880.

The previous prime is 113312003011. The next prime is 113312003039. The reversal of 113312003021 is 120300213311.

It is a de Polignac number, because none of the positive numbers 2^k-113312003021 is a prime.

It is a super-2 number, since 2×113312003021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113312003011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 927650 + ... + 1042668.

It is an arithmetic number, because the mean of its divisors is an integer number (4389163200).

Almost surely, 2^113312003021 is an apocalyptic number.

It is an amenable number.

113312003021 is a deficient number, since it is larger than the sum of its proper divisors (27141219379).

113312003021 is a wasteful number, since it uses less digits than its factorization.

113312003021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115289.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 113312003021 its reverse (120300213311), we get a palindrome (233612216332).

The spelling of 113312003021 in words is "one hundred thirteen billion, three hundred twelve million, three thousand, twenty-one".